most important is the collapse of syria which is under enormous pressure. right now president assad, most say his days are numbered. that would cut it off from the arab world, and the united states has left iraq which gives it an opening and the iranian regime is under enormous pressure from its own people. remember, the arab spring started in 2009 inquire ran and was suppressed ruthlessly so this country is desperately looking to flex their muscle and tell its own people and the world don't take us for granted, don't think we can't fight and aren't prepared to defend our interests because we will. >>trace: but iran has been threat threatening us for years and years and years. why are we paying so much attention this time? >>guest: because a fifths of all the world's oil moves through the straits of more -- of hormuz and this would be regards as an act of war and it could escalate quickly into full-blown military conflict in a very sensitive part of the world. so, it is something that the administration is watching very closely. >>trace: we are talking abou